Governor for water-wheels.



No. 656,504. Patented Aug. 2|, I900.

' C. P. BRADWAY.- 1

GOVERNOR FUR'WATER WHEELS.

(N M d {Application filed Dec. 21, 1899.;

U D B r Witnesses UNITED STATES PATENT OFFICE.

GOVERNOR 'FO R WATER-WH EELS.

SPECIFICATION forming part of Letters Patent No. 656,504, dated August21, 1900. Application filed December 21, 1899. Serial No. 741,l66.-(Nb-mans To all, 7071 0110 zit may concern Be it known that I, CHARLESP. BRADWAY, a citizen of the United States, residing at West Stafford,in the county of Tolland and State of Connecticut, have invented certainnew and useful Improvements in Governors for W'ater-W heels; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same. This inventionrelatcs togovernor mechanism for hydraulic motors to control the speed accordingto load and pressure of water, the mechanism being designed to open andclose the gate more or less as may be required to meet existingconditions. For a fnlldescription of the invention and the meritsthereof and also to acquire a knowledge of the details of constructionof the means for eifecting the result reference is to be had to thefollowing description and to the drawings hereto attached.

' reference characters.

i While the essential and characteristic features of the invention arenecessarily susceptible of modification, stillthe preferred embodimentofthe invention isillustrated in .the accompanying drawings, in whichFigure 1 is a perspective view of a governor for a turbine water-wheelconstructed in accordance with and embodying the essence of theinvention. Fig. 2 is a front view, partly in section, and showing acoil-spring connecting the governor-arms. I

Corresponding and like parts are referred to in the followingdescription and indicated in both views of the drawings by the same Theframework for supporting the working parts of the governor mechanism maybe of any form of construction, and, as illustrated, consists of a base1, uprights 2, 3, and 4, a

cross-piece 5, connecting the uprights 3 and 4,

and a transverse bar 6 between the uprights2 and 3. A shaft 7 isjournaled in bearings provided at the upper ends of the parts 3 and 4and has a band-pulley 8 and a gear-wheel 9. This shaft is driven fromthe shaft or other rotating part of the turbine wheel or engine in anyconvenient way, preferably by means of a belt (not shown) passing overthe pulley S. Bearings 11 and 12 are provided. at resleeve a and isprovided at its upper end with f nected therewith. A block or sleeve,18,mov able on the upper reduced threaded end of the shaft 10, is clampedbetween the washers 13 and has depressions in its opposite sides for thepurpose presently to be explained. A gear-whee114, intermeshing with thegearwheel 9, is secured upon the yoke 15 to 1'0- tate therewith, and they0ke.15 is mounted upon the upper end of the sleeve a and turns freelythereon. The shaft 10 has free vertical and rotary movement through thesleeve a. The governor-arms 16 are fulcrumed tothe yoke, and theirhorizontal arms enter the depressions in the sides of the block 18,'soas to efiect a positive movement of the shaft 10 in either direction., Aspring 17'connects the pendent arms of the parts 16 to materially assistin returning them and the operating spaced plates or washers 13,adjustably conparts to a normal position after being actu ated. .Thisspring may be flat and-bowed, as shown in Fig. 1, or it may be of thecoil type, as shown in Fig. 2. adjustably connected with the shaft 10they may be moved to accommodate the governorarms or any relativeposition of the members thereof. The block or spacing-sleeve 18 isadjusted by backing one of the washers and correspondingly advancing theother washer. Binding-nuts 19, mounted upon the threaded end of theshaft 10, secure the washers 13 and part 18 in an adjusted position.

Gear-wheels 20 and 21 are mounted upon the shaft 10, so as to turntherewith, yet admit of said shaft moving freely therein verticallyunder the action of the governor mechanism. Friction-cones 22and 23 areformed 7 with or secured to the respective gear-wheels 20 and 21, andthe bent ends 24 of a yoke-bar 25 enter the grooves or spaces 26, formedbetween the cones and gear-wheels to hold them in fixed relation. Thisyoke-bar 25 is secured to anextension 27 of the upright 2. Frictioncups2 8 and 29 are adjustably connected with the shaft 10 and rotatetherewith and are adapted to engage with the respective friction-cones22 and 23 to positively drive the end of the lever 43 israised and its inner end depressed, thereby preventing contact of thefriction-cnp'29 with the cone 23.- Thispinion gear-wheels and 21 inalternation to rotate the gearing-wheel 31 in reverse directions to and4.

The shaft has a gear-wheel 31 at its inner end in mesh'with thegear-whee1s 2O and2l and a pinion 32 in mesh with a gear-wheel d,afi'ixed to a shaft '0, parallel with :the shaffi30 and journaled in theuprights 3 andgt; [A e is slidable on the-shaft c, butl'ieyed to rotatetherewith. A shipper-bar 33 isslid- 1 ably mounted in ways in theuprights 3 and 4 and has a handle 34 at its outer endanda pin'35 toenter a groove 36 in a hub extension 'of the pinion e. Upon operatingthe shipper 33 the pinion 6 can be thrown into or out of gear with thegear-wheel 37, fixed upon a shaft 33, parallel with the shafts 30 and cand mounted in bearingsof the uprights 3 and 4. The shaft 38 isthreaded, ,as shown at 39, and

v atrip 40 is mounted thereon and carries a pin speed of the turbineexceeds the 41, wot-king in 'a slot 42 of a lever i3, arranged below theshaft and f ulcrumed to the upright 3. The inner end of the lever43'coope'rates with a collar-i4, attached to the shaft 10, and its outerend is forked and bears a roller 45,

arranged in the path of the trip 40, so as to be struck thereby andprevent injury to the turbine when overloaded. .A gear element 46 isappliedto the outer end" of the shaft 38 and. is connected with thegate-operating mechanism in any desired manner, so as to regulate itsspeed.

Under normal conditions the shaft 10 will occupy a position with bothsets of friction cups and cones out of engagement-1f When requirednumber of revolutions-per minute, the governor-arms will fly'outwardattheir weighted ends and depress "theshaft 10 in the manner set forth andbring the -cup 28 and cone 22 into engagement and, rotate the shaft 38inone direction and shut off the water-supply. Should the engine run-tooslow after the parts have been set for a given speed, the-weighted endsof theIgovernor-arms will gravitate and efiect-an upwardmovement of theshaft 10 and bring the cone 23 and cup 29 into engagement, whereby theshaft 38 is rotated in a reverse direction and more water, admittedtothe wheel. Theshaft 10 and cups 28 and, 29

occupy a neutral position when the turbine is rnnningat the requiredspeed. The shaft 0, with its 'gear elements (1 and 2, reduces the speedof the shaft 38 and prevents racing and enables the gate of the turbineto be i actuated at a moderate speed. When the trip e0-passes under theroller 45, the outer occurs-when the wheel-gate of the turbine is fullyopened and more speed called for,

cur from continuing to workafter the gate is fully open'edJ In order toprevent damage to the turbine when the gate is shut by auxiliary powerand to throw the regulator out of gear, an arm f is attached to the trip40 and extends within the pa-thof'a pin or stop g of the shipper-bar 33:When the trip 40 reaches the limit of its inward movement, the arm fwill strike the pin g and move the shipper-bar 33 and throw the pinioneand gearwheel 37 out of gear and the regulator out of action.

Having thus described the invention, what is claimed as new is- 1. Ingovernormechanisimthe combination with the vertical shaft, governor-armscooperating therewith, and a horizontal shaft adapted to be driven inreverse directions by means of said vertical shaft and having a threadedportion, a trip mounted upon the threaded portion of the horizontalshaft, a lever having-one end operatively related. with reference-to thevertical shaft and having its opposite end independent of and projectedin the path of the aforementioned trip, and means between the said tripand lever to prevent relative rotation of the trip upon its shaft,substantially as set forth.

2. In governor mechanism,the combination with the vertical shaft,governor-arms cooperating therewith, and .a horizontal shaft adapted tobe'driven in reverse directions from the vertical shaft and having athreaded portion, a lever having one end in engagement with the verticalshaft and having its opposite end portion longitudinally slotted andbent to embrace opposite sides of the aforementioned horizontal shaft, aconnecting device joining the terminal portions of the spaced parts ofthe lever and located in the path of the trip, the trip andfenteringlever, as and for thepurpose set forth.

3; In governor mechanisnnthe combination with the vertically-movableshaft, the governor-arms, a driven shaft geared to the vertieal shaft,and adapted to be rotated in reand a-pin projecting from the slotted endof the- IIO verse directions, clutches cooperating with the verticalshaft and gearing, and a gate controlling shaft geared to the drivenshaft, of a shipper-bar for throwing the gate-controlling and drivenshafts into and out of gear and having a stop, a trip connected byscrew-thread with the gate-controlling shaft,

a lever adapted to be operated by means of the trip tothrow the clutchesout of action, and an arm applied to the trip and movable therewith andadapted to strike the stop of the shipper'bar, substantially asdescribed.

In testimony whereof I aflix mysignature in presence of two witnesses.

tannins r. BRADii'AY [1,. s]

Witnessesi'; N FRANK:.Z.;FA1RFIELD, MARSHALL -L. BRADWAY.

